// 改变日期格式
const stringFromDate = (date) => {
  if (typeof date === 'string') {
      date = new Date(date) 

  }
  const year = date.getFullYear()
  const month = (date.getMonth() + 1).toString().padStart(2, '0')
  const day = date.getDate().toString().padStart(2, '0')
  const formattedDate = `${year}-${month}-${day}`
  return formattedDate
}